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BIPV is gaining growing interest in Germany. As a reaction to the requests of homeowners for solar roofing tiles, the system integrator Sesol Gesellschaft für solare Energiesysteme has developed a new solar roofing tile named »Solardachstein Sesol.« This roof tile replaces the common roof tile type, the »Frankfurter Pfanne.« The Frankfurter Pfanne is widespread and popular in Germany, which gave the new solar tile a good market chance. As opposed to the Frankfurter Pfanne, the Sesol element doesn’t contain any bricks; it is a dark-colored solar module within a frame of special concrete and is therefore not red but grayish. The border of the solar tile fits perfectly into the fold of the Frankfurter Pfanne. Thus a roof with integrated Sesol solar tiles is as leak-proof as a roof without.
The solar module is produced by the company GSS of Gera, which was also part of the development of the solar tile. It has a power of 42 watts. The solar tile has also an MC-plug as a connection to make it easier for a roofer not familiar with solar energy to install the system. For the IEC 61215 certified module Sesol is giving a 20-year guarantee on the power output. The system still is in an early prototype stage as not more than 8 kW of the new roof tiles have been installed until now. This may also be a result of the, relative to common solar modules, slightly high price of 649.50 DM ($320 USD) for a 42 watt roof tile. In the future Sesol plans to offer solar roof tiles for other common roof tile types in addition to the Frankfurter Pfanne. Sesol Gesellschaft für
solare Systeme mbH Anne
Kreutzmann
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